10. Play at least one game of Marco Polo, campfireside Chubby Bunnies, and that paddle thing.

11. If you're away from your bf — for a week or the whole summer — use it as extended foreplay. Think up smoldering ways to flirt from afar so your reunion will be even hotter.

12. Take a day trip...by yourself. Enjoy the company.

13. Make a little extra time for your pal with the convertible, nudge nudge.

14. You know that really great bud whom you talk to less because she moved away? Reconnect with her.

15. Take a random midweek day off work. You'll stress less about weekend trips because you'll have that time to catch up on stuff at home.

16. Get a few cute tanks in bright colors: hot pink, lime green, cobalt. They're stylish and affordable, and you'll stand out in those inevitable party pictures.

17. Reality check: You can dump a bad-news guy, even if you have travel plans together. Yeah, when you've been focused on the trip, it seems jarring to consider, but it's so worth it compared to feeling free.

18. Pick a great position from Cosmo's Aqua Kama Sutra. Try it outside.

19. Institute a summertime ritual with your friends, like twice-a-month gimlet Tuesdays. You won't all make every one, but it'll give you a place to pop by, check in, and make new memories.

20. When you see a cute guy at the beach, tell him he looks hot, and offer him an icy drink from your cooler.

21. Leave your cell phone off for an entire day. What's the worst that can happen? Guess you'll find out.